External diameter turning adjustable internal expansion hexagonal clamp

Abstract

The utility model provides an external diameter adjustable internal expansion hexagonal clamp for turning, which relates to the technical field of hexagonal clamps and comprises a clamp base, a placing groove is arranged at the top of the clamp base, two mounting grooves are arranged at the top of the clamp base, bolts are fixedly mounted at the bottoms of the inner walls of the two mounting grooves, and a circular plate is arranged at the bottom of the inner wall of the placing groove. Two mounting blocks are fixedly mounted on the outer surface wall of the circular plate; according to the inner hexagonal shaft sleeve mounting device, when different inner hexagonal shaft sleeves need to be mounted, the corresponding circular plates and the corresponding hexagonal shaft cores are placed in the containing grooves, at the moment, the two bolts are sleeved with the two mounting blocks through the two through holes, and then the two mounting blocks rotate downwards along the two bolts under the action of the two nuts; the round plate and the hexagonal shaft core can be installed on the clamp base until the two nuts make contact with the two installation blocks, and due to the fact that the disassembly and assembly process is simple, replacement is convenient, and the adaptability is high, the use flexibility of the external diameter adjustable internal expansion hexagonal clamp for turning is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hexagonal clamps, in particular to a hexagonal clamp with adjustable outer diameter and internal expansion. Background Art

[0002] The turning outer diameter adjustable internal expansion hexagonal clamp is a clamp used for lathe processing. Its design allows clamping workpieces of different sizes, especially hexagonal workpieces. The clamp adapts to different workpiece diameters through the internal adjustable structure, so that the clamp can provide better clamping force and stability during the processing process, and can firmly clamp hexagonal or other polygonal workpieces, effectively preventing the movement or vibration of the workpiece during the processing. Due to the adjustable outer diameter, it can adapt to workpieces of various specifications, with high processing efficiency and improved processing accuracy, especially for the alignment of marks and cutting edges. Secondly, through stable clamping, vibration is reduced and the wear of the tool is protected to a certain extent.

[0003] In the prior art, when the hexagonal clamp with adjustable outer diameter and internal expansion is in use, its hexagonal shaft core is fixed to the clamp base and cannot be replaced, resulting in low adaptability, thereby reducing the flexibility of the clamp. Utility Model Content

[0004] The utility model mainly provides a hexagonal clamp with adjustable outer diameter and internal expansion, which is convenient for replacing the hexagonal shaft core and improves adaptability.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a turning outer diameter adjustable internal expansion hexagonal clamp includes a clamp base, a placement groove is provided on the top of the clamp base, and two mounting grooves are provided on the top of the inner wall of the two mounting grooves. Bolts are fixedly installed on the bottom of the inner wall of the placement groove. A circular plate is placed on the bottom of the inner wall of the placement groove. Two mounting blocks are fixedly installed on the outer wall of the circular plate. Through holes are provided on the tops of the two mounting blocks, and the outer walls of the two bolts are movably inserted into the inside of the two through holes. The outer walls of the two bolts are threadedly connected with nuts, and the bottoms of the two nuts are in contact with the tops of the two mounting blocks.

[0006] Preferably, three positioning columns are fixedly mounted on the top of the circular plate, and the top of the circular plate contacts the limiting sleeve. Through the action of the three positioning columns, the limiting sleeve can be quickly and accurately placed in the corresponding position.

[0007] Preferably, three positioning holes are provided on the top of the limiting sleeve, and the outer walls of the three positioning columns are movably inserted into the three positioning holes. Since three positioning holes are provided on the top of the limiting sleeve, the limiting sleeve can be placed on the three positioning columns through the three positioning holes and contact the circular plate.

[0008] Preferably, a hexagonal shaft core is fixedly installed on the top of the circular plate, and a thread groove is provided inside the hexagonal shaft core. By providing a thread groove inside the hexagonal shaft core, it is convenient to thread the threaded sleeve with it, and then the hexagonal shaft sleeve is installed on the hexagonal shaft core.

[0009] Preferably, the outer wall movable sleeve of the hexagonal shaft core is provided with an inner hexagonal shaft sleeve, and the bottom of the inner hexagonal shaft sleeve contacts the top of the circular plate. The inner hexagonal shaft sleeve is adapted to the outer wall of the hexagonal shaft core through the inner hexagonal hole, so that it is in close contact with the hexagonal shaft core.

[0010] Preferably, the inner walls of the three positioning columns are threadedly connected to fixing parts, and the outer walls of the three fixing parts are movably inserted into the inside of the three positioning holes. Through the action of the three fixing parts, they pass through the three positioning holes and are threadedly connected to the inside of the three positioning columns, thereby installing the limit sleeve around the circular plate and the hexagonal shaft core.

[0011] Preferably, the inner surface wall of the hexagonal shaft core is threadedly connected with a threaded sleeve, and the bottom of the inner wall of the threaded sleeve contacts the top of the inner hexagonal sleeve. The threaded sleeve is threadedly connected to the inside of the hexagonal sleeve until the threaded sleeve contacts the top of the inner hexagonal sleeve, and the inner hexagonal sleeve can be installed on the fixture base.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the utility model, when it is necessary to adapt to the installation needs of different hexagonal sleeves, the corresponding circular plate and the hexagonal shaft core are placed in the placement groove. At this time, the two mounting blocks are sleeved on the two bolts through the two through holes, and then the two nuts are used to rotate downward along the two bolts until the two nuts contact the two mounting blocks. The circular plate and the hexagonal shaft core can be installed on the fixture base. Since the disassembly and assembly process is simple, it is easy to replace and has high adaptability, thereby improving the flexibility of use of the vehicle's adjustable outer diameter internal expansion hexagonal clamp.

[0014] 2. In the present invention, the limiting sleeve is put on the three positioning columns through the three positioning holes, and then through the action of three fixing parts, it passes through the three positioning holes and is threadedly connected to the three positioning columns, and then the limiting sleeve is installed around the circular plate and the hexagonal shaft core, and then is threadedly connected to the inside of the hexagonal shaft core through the threaded sleeve, and the hexagonal shaft sleeve can be installed on the hexagonal shaft core and the fixture base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the utility model for turning an outer diameter adjustable inner expansion hexagonal clamp;

[0016] Figure 2 This is a partial disassembled diagram of the hexagonal clamp with adjustable outer diameter and internal expansion proposed by the utility model;

[0017] Figure 3 This is a partial expansion diagram of the hexagonal clamp with adjustable outer diameter and internal expansion proposed by the utility model;

[0018] Figure 4 This is a partial expansion diagram of the utility model for turning an adjustable outer diameter internal expansion hexagonal clamp;

[0019] Figure 5 The utility model provides a disassembled diagram of a hexagonal clamp with adjustable outer diameter and internal expansion.

[0020] Legend:

[0021] 1. Fixture base; 2. Placement slot; 3. Mounting slot; 4. Bolt; 5. Round plate; 6. Mounting block; 7. Through hole; 8. Nut; 9. Positioning column; 10. Limit sleeve; 11. Positioning hole; 12. Hexagonal shaft core; 13. Hexagon socket sleeve; 14. Fixing piece; 15. Threaded sleeve. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] See also Figure 1-5 The utility model provides a technical solution: a hexagonal clamp with adjustable outer diameter and internal expansion, comprising a clamp base 1, a placement groove 2 is provided on the top of the clamp base 1, two mounting grooves 3 are provided on the top of the clamp base 1, bolts 4 are fixedly installed on the bottom of the inner wall of the two mounting grooves 3, a circular plate 5 is placed on the bottom of the inner wall of the placement groove 2, two mounting blocks 6 are fixedly installed on the outer wall of the circular plate 5, through holes 7 are provided on the tops of the two mounting blocks 6, and the outer walls of the two bolts 4 are movably inserted into the inside of the two through holes 7, the outer walls of the two bolts 4 are threadedly connected with nuts 8, and the bottoms of the two nuts 8 are in contact with the tops of the two mounting blocks 6.

[0025] like Figure 1 - Figure 4 As shown, three positioning columns 9 are fixedly installed on the top of the circular plate 5. The top of the circular plate 5 contacts the limiting sleeve 10. Through the action of the three positioning columns 9, the limiting sleeve 10 can be quickly and accurately placed in the corresponding position.

[0026] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, three positioning holes 11 are provided on the top of the limiting sleeve 10, and the outer walls of the three positioning columns 9 are movably inserted into the three positioning holes 11. Since three positioning holes 11 are provided on the top of the limiting sleeve 10, the limiting sleeve 10 can be sleeved on the three positioning columns 9 through the three positioning holes 11 and contact the circular plate 5.

[0027] like Figure 1 、 Figure 4 and Figure 5 As shown, a hexagonal shaft core 12 is fixedly installed on the top of the circular plate 5, and a thread groove is provided inside the hexagonal shaft core 12. By providing a thread groove inside the hexagonal shaft core 12, it is convenient to thread the threaded sleeve 15 with it, and then the hexagonal sleeve 13 is installed on the hexagonal shaft core 12.

[0028] like Figure 1 、 Figure 4 and Figure 5 As shown, the outer wall of the hexagonal shaft core 12 is movably sleeved with an inner hexagonal shaft sleeve 13, and the bottom of the inner hexagonal shaft sleeve 13 contacts the top of the circular plate 5. The inner hexagonal shaft sleeve 13 is adapted to the outer wall of the hexagonal shaft core 12 through the inner hexagonal hole, so that it is in close contact with the hexagonal shaft core 12.

[0029] like Figure 1 - Figure 4 As shown, the inner walls of the three positioning columns 9 are all threadedly connected with fixing parts 14, and the outer walls of the three fixing parts 14 are movably inserted into the inside of the three positioning holes 11. Through the action of the three fixing parts 14, they pass through the three positioning holes 11 and are threadedly connected to the inside of the three positioning columns 9, thereby installing the limit sleeve 10 around the circular plate 5 and the hexagonal shaft core 12.

[0030] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the inner surface wall of the hexagonal shaft core 12 is threadedly connected with a threaded sleeve 15, and the bottom of the inner wall of the threaded sleeve 15 contacts the top of the inner hexagonal sleeve 13. The threaded sleeve 15 is threadedly connected to the inside of the hexagonal shaft core 12 until the threaded sleeve 15 contacts the top of the inner hexagonal sleeve 13, and the inner hexagonal sleeve 13 can be installed on the fixture base 1.

[0031] The usage and working principle of this device: First, according to the needs of installing the hexagonal sleeve 13 on site, select the corresponding circular plate 5 and the hexagonal shaft core 12 installed on the circular plate 5, and then place the circular plate 5 in the placement groove 2. At this time, the mounting blocks 6 installed on both sides of the circular plate 5 are just inserted into the two mounting grooves 3, and the through holes 7 opened on the two mounting blocks 6 are just sleeved on the two bolts 4 installed at the bottom of the inner wall of the mounting groove 3. Then, through the action of the two nuts 8, it is rotated downward along the two bolts 4 until the two nuts 8 contact the top of the two mounting blocks 6. The two mounting blocks 6, the circular plate 5 and the hexagonal shaft core 12 can be installed on the fixture base 1, and then the limit sleeve 10 is sleeved on the three positioning columns 9 installed on the circular plate 5 through the three positioning holes 11. And through three fixing parts 14 through three positioning holes 11 and then threadedly connected to the three positioning columns 9, and then the limit sleeve 10 is installed around the circular plate 5 and the hexagonal shaft core 12, and then the hexagonal shaft sleeve 13 is put on the hexagonal shaft core 12, and its hexagonal shaft sleeve 13 is adapted to the outer wall of the hexagonal shaft core 12 through the internal hexagonal hole, so that it is in close contact with the hexagonal shaft core 12, and then it is threadedly connected to the inside of the hexagonal shaft core 12 through the threaded sleeve 15 until the threaded sleeve 15 contacts the top of the hexagonal shaft core 12, and the hexagonal shaft sleeve 13 can be installed on the fixture base 1. Since the disassembly and assembly process of the circular plate 5 and the hexagonal shaft core 12 is simple, it is easy to replace and has high adaptability, thereby improving the flexibility of use of the vehicle's adjustable outer diameter internal expansion hexagonal clamp.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A hexagonal clamp with adjustable outer diameter and internal expansion, comprising a clamp base (1), characterized in that: The top of the clamp base (1) is provided with a placement groove (2), and the top of the clamp base (1) is provided with two installation grooves (3), the bottom of the inner wall of the two installation grooves (3) are fixedly installed with bolts (4), the bottom of the inner wall of the placement groove (2) is provided with a circular plate (5), the outer wall of the circular plate (5) is fixedly installed with two installation blocks (6), the top of the two installation blocks (6) are provided with through holes (7), and the outer walls of the two bolts (4) are movably inserted into the inside of the two through holes (7), the outer walls of the two bolts (4) are threadedly connected with nuts (8), and the bottoms of the two nuts (8) are in contact with the tops of the two installation blocks (6).

2. The hexagonal clamp with adjustable outer diameter for turning according to claim 1, characterized in that: Three positioning columns (9) are fixedly mounted on the top of the circular plate (5), and the top of the circular plate (5) contacts a limiting sleeve (10).

3. The hexagonal clamp with adjustable outer diameter for turning according to claim 2, characterized in that: Three positioning holes (11) are provided on the top of the limiting sleeve (10), and the outer walls of the three positioning columns (9) are movably inserted into the interior of the three positioning holes (11).

4. The hexagonal clamp with adjustable inner expansion for turning according to claim 3, characterized in that: A hexagonal shaft core (12) is fixedly mounted on the top of the circular plate (5), and a threaded groove is provided inside the hexagonal shaft core (12).

5. The hexagonal clamp with adjustable inner expansion for turning according to claim 4, characterized in that: The outer wall movable sleeve of the hexagonal shaft core (12) is provided with an inner hexagonal shaft sleeve (13), and the bottom of the inner hexagonal shaft sleeve (13) contacts the top of the circular plate (5).

6. The hexagonal clamp with adjustable outer diameter for internal expansion according to claim 5, characterized in that: The inner surfaces of the three positioning columns (9) are all threadedly connected with fixing members (14), and the outer surfaces of the three fixing members (14) are movably inserted into the interiors of the three positioning holes (11).

7. The hexagonal clamp with adjustable outer diameter for internal expansion according to claim 6, characterized in that: The inner surface wall of the hexagonal shaft core (12) is threadedly connected with a threaded sleeve (15), and the bottom of the inner wall of the threaded sleeve (15) contacts the top of the inner hexagonal shaft sleeve (13).

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